libempathy-gtk/empathy-smiley-manager.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Dafydd Harrie <dafydd.harries@collabora.co.uk>
  20  *          Xavier Claessens <xclaesse@gmail.com>
  21  */
  22
  23 #include "config.h"
  24 #include "empathy-smiley-manager.h"
  25
  26 #include <tp-account-widgets/tpaw-pixbuf-utils.h>
  27 #include <tp-account-widgets/tpaw-utils.h>
  28
  29 #include "empathy-ui-utils.h"
  30 #include "empathy-utils.h"
  31
  32 typedef struct _SmileyManagerTree SmileyManagerTree;
  33
  34 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathySmileyManager)
  35 typedef struct {
  36         SmileyManagerTree *tree;
  37         GSList            *smileys;
  38 } EmpathySmileyManagerPriv;
  39
  40 struct _SmileyManagerTree {
  41         gunichar     c;
  42         GdkPixbuf   *pixbuf;
  43         gchar       *path;
  44         GSList      *childrens;
  45 };
  46
  47 G_DEFINE_TYPE (EmpathySmileyManager, empathy_smiley_manager, G_TYPE_OBJECT);
  48
  49 static EmpathySmileyManager *manager_singleton = NULL;
  50
  51 static SmileyManagerTree *
  52 smiley_manager_tree_new (gunichar c)
  53 {
  54         SmileyManagerTree *tree;
  55
  56         tree = g_slice_new0 (SmileyManagerTree);
  57         tree->c = c;
  58         tree->pixbuf = NULL;
  59         tree->childrens = NULL;
  60         tree->path = NULL;
  61
  62         return tree;
  63 }
  64
  65 static void
  66 smiley_manager_tree_free (SmileyManagerTree *tree)
  67 {
  68         GSList *l;
  69
  70         if (!tree) {
  71                 return;
  72         }
  73
  74         for (l = tree->childrens; l; l = l->next) {
  75                 smiley_manager_tree_free (l->data);
  76         }
  77
  78         if (tree->pixbuf) {
  79                 g_object_unref (tree->pixbuf);
  80         }
  81         g_slist_free (tree->childrens);
  82         g_free (tree->path);
  83         g_slice_free (SmileyManagerTree, tree);
  84 }
  85
  86 static EmpathySmiley *
  87 smiley_new (GdkPixbuf *pixbuf, const gchar *str)
  88 {
  89         EmpathySmiley *smiley;
  90
  91         smiley = g_slice_new0 (EmpathySmiley);
  92         smiley->pixbuf = g_object_ref (pixbuf);
  93         smiley->str = g_strdup (str);
  94
  95         return smiley;
  96 }
  97
  98 static void
  99 smiley_free (EmpathySmiley *smiley)
 100 {
 101         g_object_unref (smiley->pixbuf);
 102         g_free (smiley->str);
 103         g_slice_free (EmpathySmiley, smiley);
 104 }
 105
 106 static void
 107 smiley_manager_finalize (GObject *object)
 108 {
 109         EmpathySmileyManagerPriv *priv = GET_PRIV (object);
 110
 111         smiley_manager_tree_free (priv->tree);
 112         g_slist_foreach (priv->smileys, (GFunc) smiley_free, NULL);
 113         g_slist_free (priv->smileys);
 114 }
 115
 116 static GObject *
 117 smiley_manager_constructor (GType type,
 118                             guint n_props,
 119                             GObjectConstructParam *props)
 120 {
 121         GObject *retval;
 122
 123         if (manager_singleton) {
 124                 retval = g_object_ref (manager_singleton);
 125         } else {
 126                 retval = G_OBJECT_CLASS (empathy_smiley_manager_parent_class)->constructor
 127                         (type, n_props, props);
 128
 129                 manager_singleton = EMPATHY_SMILEY_MANAGER (retval);
 130                 g_object_add_weak_pointer (retval, (gpointer) &manager_singleton);
 131         }
 132
 133         return retval;
 134 }
 135
 136 static void
 137 empathy_smiley_manager_class_init (EmpathySmileyManagerClass *klass)
 138 {
 139         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 140
 141         object_class->finalize = smiley_manager_finalize;
 142         object_class->constructor = smiley_manager_constructor;
 143
 144         g_type_class_add_private (object_class, sizeof (EmpathySmileyManagerPriv));
 145 }
 146
 147 static void
 148 empathy_smiley_manager_init (EmpathySmileyManager *manager)
 149 {
 150         EmpathySmileyManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 151                 EMPATHY_TYPE_SMILEY_MANAGER, EmpathySmileyManagerPriv);
 152
 153         manager->priv = priv;
 154         priv->tree = smiley_manager_tree_new ('\0');
 155         priv->smileys = NULL;
 156
 157         empathy_smiley_manager_load (manager);
 158 }
 159
 160 EmpathySmileyManager *
 161 empathy_smiley_manager_dup_singleton (void)
 162 {
 163         return g_object_new (EMPATHY_TYPE_SMILEY_MANAGER, NULL);
 164 }
 165
 166 static SmileyManagerTree *
 167 smiley_manager_tree_find_child (SmileyManagerTree *tree, gunichar c)
 168 {
 169         GSList *l;
 170
 171         for (l = tree->childrens; l; l = l->next) {
 172                 SmileyManagerTree *child = l->data;
 173
 174                 if (child->c == c) {
 175                         return child;
 176                 }
 177         }
 178
 179         return NULL;
 180 }
 181
 182 static SmileyManagerTree *
 183 smiley_manager_tree_find_or_insert_child (SmileyManagerTree *tree, gunichar c)
 184 {
 185         SmileyManagerTree *child;
 186
 187         child = smiley_manager_tree_find_child (tree, c);
 188
 189         if (!child) {
 190                 child = smiley_manager_tree_new (c);
 191                 tree->childrens = g_slist_prepend (tree->childrens, child);
 192         }
 193
 194         return child;
 195 }
 196
 197 static void
 198 smiley_manager_tree_insert (SmileyManagerTree *tree,
 199                             GdkPixbuf         *pixbuf,
 200                             const gchar       *str,
 201                             const gchar       *path)
 202 {
 203         SmileyManagerTree *child;
 204
 205         child = smiley_manager_tree_find_or_insert_child (tree, g_utf8_get_char (str));
 206
 207         str = g_utf8_next_char (str);
 208         if (*str) {
 209                 smiley_manager_tree_insert (child, pixbuf, str, path);
 210                 return;
 211         }
 212
 213         child->pixbuf = g_object_ref (pixbuf);
 214         child->path = g_strdup (path);
 215 }
 216
 217 static void
 218 smiley_manager_add_valist (EmpathySmileyManager *manager,
 219                            GdkPixbuf            *pixbuf,
 220                            const gchar          *path,
 221                            const gchar          *first_str,
 222                            va_list               var_args)
 223 {
 224         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 225         const gchar              *str;
 226         EmpathySmiley            *smiley;
 227
 228         for (str = first_str; str; str = va_arg (var_args, gchar*)) {
 229                 smiley_manager_tree_insert (priv->tree, pixbuf, str, path);
 230         }
 231
 232         g_object_set_data_full (G_OBJECT (pixbuf), "smiley_str",
 233                                 g_strdup (first_str), g_free);
 234         smiley = smiley_new (pixbuf, first_str);
 235         priv->smileys = g_slist_prepend (priv->smileys, smiley);
 236 }
 237
 238 void
 239 empathy_smiley_manager_add (EmpathySmileyManager *manager,
 240                             const gchar          *icon_name,
 241                             const gchar          *first_str,
 242                             ...)
 243 {
 244         GdkPixbuf *pixbuf;
 245         va_list    var_args;
 246
 247         g_return_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager));
 248         g_return_if_fail (!TPAW_STR_EMPTY (icon_name));
 249         g_return_if_fail (!TPAW_STR_EMPTY (first_str));
 250
 251         pixbuf = tpaw_pixbuf_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
 252         if (pixbuf) {
 253                 gchar *path;
 254
 255                 va_start (var_args, first_str);
 256                 path = tpaw_filename_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
 257                 smiley_manager_add_valist (manager, pixbuf, path, first_str, var_args);
 258                 va_end (var_args);
 259                 g_object_unref (pixbuf);
 260                 g_free (path);
 261         }
 262 }
 263
 264 void
 265 empathy_smiley_manager_load (EmpathySmileyManager *manager)
 266 {
 267         g_return_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager));
 268
 269         /* From fd.o icon-naming spec */
 270
 271         /* U+1F47C BABY ANGEL */
 272         empathy_smiley_manager_add (manager, "face-angel",      "👼",    "O:-)",  "O:)",  NULL);
 273         /* U+1F620 ANGRY FACE */
 274         empathy_smiley_manager_add (manager, "face-angry",      "😠",    "X-(",   ":@",   NULL);
 275         /* U+1F60E SMILING FACE WITH SUNGLASSES */
 276         empathy_smiley_manager_add (manager, "face-cool",       "😎",    "B-)",   "B-|",  NULL);
 277         /* U+1F62D LOUDLY CRYING FACE */
 278         empathy_smiley_manager_add (manager, "face-crying",     "😭",    ":'(",           NULL);
 279         /* U+1F608 SMILING FACE WITH HORNS  */
 280         empathy_smiley_manager_add (manager, "face-devilish",   "😈",    ">:-)",  ">:)",  NULL);
 281         /* U+1F633 FLUSHED FACE */
 282         empathy_smiley_manager_add (manager, "face-embarrassed","😳",    ":-[",   ":[",   ":-$", ":$", NULL);
 283         /* no suitable character in unicode */
 284         empathy_smiley_manager_add (manager, "face-glasses",    "8-)",   NULL);
 285         /* U+1F618 FACE THROWING A KISS */
 286         empathy_smiley_manager_add (manager, "face-kiss",       "😘",    ":-*",   ":*",   NULL);
 287         /* U+1F604 SMILING FACE WITH OPEN MOUTH AND SMILING EYES" */
 288         empathy_smiley_manager_add (manager, "face-laugh",      "😄",    ":-))",  ":))",  NULL);
 289         /* U+1F435 MONKEY */
 290         empathy_smiley_manager_add (manager, "face-monkey",     "🐵",    ":-(|)", ":(|)", NULL);
 291         /* U+1F610 NEUTRAL FACE */
 292         empathy_smiley_manager_add (manager, "face-plain",      "😐",    ":-|",   ":|",   NULL);
 293         /* U+1F61B FACE WITH STUCK-OUT TONGUE */
 294         empathy_smiley_manager_add (manager, "face-raspberry",  "😛",    ":-P",   ":P",        ":-p", ":p", NULL);
 295         /* U+1F626 FROWING FACE WITH OPEN MOUTH */
 296         empathy_smiley_manager_add (manager, "face-sad",        "😦",    ":-(",   ":(",   NULL);
 297         /* U+1F635 DIZZY FACE */
 298         empathy_smiley_manager_add (manager, "face-sick",       "😵",    ":-&",   ":&",   NULL);
 299         /* U+1F603 SMILING FACE WITH OPEN MOUTH */
 300         empathy_smiley_manager_add (manager, "face-smile",      "😃",    ":-)",   ":)",   ":]",  "=)", NULL);
 301         /* U+1F601 GRINNING FACE WITH SMILING EYES */
 302         empathy_smiley_manager_add (manager, "face-smile-big",  "😁",    ":-D",   ":D",   ":-d", ":d", NULL);
 303         /* U+1F60F SMIRKING FACE */
 304         empathy_smiley_manager_add (manager, "face-smirk",      "😏",    ":-!",   ":!",   NULL);
 305         /* U+1F632 ASTONISHED FACE */
 306         empathy_smiley_manager_add (manager, "face-surprise",   "😲",    ":-O",   ":O",   ":-o", ":o", NULL);
 307         /* U+1F62A SLEEPY FACE */
 308         empathy_smiley_manager_add (manager, "face-tired",      "😪",    "|-)",   "|)",   NULL);
 309         /* U+1F615 CONFUSED FACE */
 310         empathy_smiley_manager_add (manager, "face-uncertain",  "😕",    ":-/",   ":/",   ":-\\", ":\\", NULL);
 311         /* U+1F609 WINKING FACE */
 312         empathy_smiley_manager_add (manager, "face-wink",       "😉",    ";-)",   ";)",   NULL);
 313         /* U+1F61F WORRIED FACE */
 314         empathy_smiley_manager_add (manager, "face-worried",    "😟",    ":-S",   ":S",   ":-s", ":s", NULL);
 315         /* U+2764 HEAVY BLACK HEART */
 316         empathy_smiley_manager_add (manager, "emblem-favorite", "❤",     "<3", NULL);
 317 }
 318
 319 static EmpathySmileyHit *
 320 smiley_hit_new (SmileyManagerTree *tree,
 321                 guint              start,
 322                 guint              end)
 323 {
 324         EmpathySmileyHit *hit;
 325
 326         hit = g_slice_new (EmpathySmileyHit);
 327         hit->pixbuf = tree->pixbuf;
 328         hit->path = tree->path;
 329         hit->start = start;
 330         hit->end = end;
 331
 332         return hit;
 333 }
 334
 335 void
 336 empathy_smiley_hit_free (EmpathySmileyHit *hit)
 337 {
 338         g_return_if_fail (hit != NULL);
 339
 340         g_slice_free (EmpathySmileyHit, hit);
 341 }
 342
 343 GSList *
 344 empathy_smiley_manager_parse_len (EmpathySmileyManager *manager,
 345                                   const gchar          *text,
 346                                   gssize                len)
 347 {
 348         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 349         EmpathySmileyHit         *hit;
 350         GSList                   *hits = NULL;
 351         SmileyManagerTree        *cur_tree = priv->tree;
 352         const gchar              *cur_str;
 353         const gchar              *start = NULL;
 354
 355         g_return_val_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager), NULL);
 356         g_return_val_if_fail (text != NULL, NULL);
 357
 358         /* If len is negative, parse the string until we find '\0' */
 359         if (len < 0) {
 360                 len = G_MAXSSIZE;
 361         }
 362
 363         /* Parse the len first bytes of text to find smileys. Each time a smiley
 364          * is detected, append a EmpathySmileyHit struct to the returned list,
 365          * containing the smiley pixbuf and the position of the text to be
 366          * replaced by it.
 367          * cur_str is a pointer in the text showing the current position
 368          * of the parsing. It is always at the begining of an UTF-8 character,
 369          * because we support unicode smileys! For example we could want to
 370          * replace ™ by an image. */
 371
 372         for (cur_str = text;
 373              *cur_str != '\0' && cur_str - text < len;
 374              cur_str = g_utf8_next_char (cur_str)) {
 375                 SmileyManagerTree *child;
 376                 gunichar           c;
 377
 378                 c = g_utf8_get_char (cur_str);
 379                 child = smiley_manager_tree_find_child (cur_tree, c);
 380
 381                 /* If we have a child it means c is part of a smiley */
 382                 if (child) {
 383                         if (cur_tree == priv->tree) {
 384                                 /* c is the first char of some smileys, keep
 385                                  * the begining position */
 386                                 start = cur_str;
 387                         }
 388                         cur_tree = child;
 389                         continue;
 390                 }
 391
 392                 /* c is not part of a smiley. let's check if we found a smiley
 393                  * before it. */
 394                 if (cur_tree->pixbuf != NULL) {
 395                         /* found! */
 396                         hit = smiley_hit_new (cur_tree, start - text,
 397                                               cur_str - text);
 398                         hits = g_slist_prepend (hits, hit);
 399
 400                         /* c was not part of this smiley, check if a new smiley
 401                          * start with it. */
 402                         cur_tree = smiley_manager_tree_find_child (priv->tree, c);
 403                         if (cur_tree) {
 404                                 start = cur_str;
 405                         } else {
 406                                 cur_tree = priv->tree;
 407                         }
 408                 } else if (cur_tree != priv->tree) {
 409                         /* We searched a smiley starting at 'start' but we ended
 410                          * with no smiley. Look again starting from next char.
 411                          *
 412                          * For example ">:)" and ":(" are both valid smileys,
 413                          * when parsing text ">:(" we first see '>' which could
 414                          * be the start of a smiley. 'start' variable is set to
 415                          * that position and we parse next char which is ':' and
 416                          * is still potential smiley. Then we see '(' which is
 417                          * NOT part of the smiley, ">:(" does not exist, so we
 418                          * have to start again from ':' to find ":(" which is
 419                          * correct smiley. */
 420                         cur_str = start;
 421                         cur_tree = priv->tree;
 422                 }
 423         }
 424
 425         /* Check if last char of the text was the end of a smiley */
 426         if (cur_tree->pixbuf != NULL) {
 427                 hit = smiley_hit_new (cur_tree, start - text, cur_str - text);
 428                 hits = g_slist_prepend (hits, hit);
 429         }
 430
 431         return g_slist_reverse (hits);
 432 }
 433
 434 GSList *
 435 empathy_smiley_manager_get_all (EmpathySmileyManager *manager)
 436 {
 437         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 438
 439         return priv->smileys;
 440 }
 441
 442 typedef struct {
 443         EmpathySmileyManager *manager;
 444         EmpathySmiley        *smiley;
 445         EmpathySmileyMenuFunc func;
 446         gpointer              user_data;
 447 } ActivateData;
 448
 449 static void
 450 smiley_menu_data_free (gpointer  user_data,
 451                        GClosure *closure)
 452 {
 453         ActivateData *data = (ActivateData *) user_data;
 454
 455         g_object_unref (data->manager);
 456         g_slice_free (ActivateData, data);
 457 }
 458
 459 static void
 460 smiley_menu_activate_cb (GtkMenuItem *menuitem,
 461                          gpointer     user_data)
 462 {
 463         ActivateData *data = (ActivateData *) user_data;
 464
 465         data->func (data->manager, data->smiley, data->user_data);
 466 }
 467
 468 GtkWidget *
 469 empathy_smiley_menu_new (EmpathySmileyManager *manager,
 470                          EmpathySmileyMenuFunc func,
 471                          gpointer              user_data)
 472 {
 473         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 474         GSList                   *l;
 475         GtkWidget                *menu;
 476         gint                      x = 0;
 477         gint                      y = 0;
 478
 479         g_return_val_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager), NULL);
 480         g_return_val_if_fail (func != NULL, NULL);
 481
 482         menu = gtk_menu_new ();
 483
 484         for (l = priv->smileys; l; l = l->next) {
 485                 EmpathySmiley *smiley;
 486                 GtkWidget     *item;
 487                 GtkWidget     *image;
 488                 ActivateData  *data;
 489
 490                 smiley = l->data;
 491                 image = gtk_image_new_from_pixbuf (smiley->pixbuf);
 492
 493                 item = gtk_image_menu_item_new ();
 494                 gtk_style_context_add_class (gtk_widget_get_style_context (item),
 495                         "empathy-smiley-menu-item");
 496                 gtk_container_add (GTK_CONTAINER (item), image);
 497
 498                 gtk_menu_attach (GTK_MENU (menu), item,
 499                                  x, x + 1, y, y + 1);
 500
 501                 gtk_widget_set_tooltip_text (item, smiley->str);
 502
 503                 data = g_slice_new (ActivateData);
 504                 data->manager = g_object_ref (manager);
 505                 data->smiley = smiley;
 506                 data->func = func;
 507                 data->user_data = user_data;
 508
 509                 g_signal_connect_data (item, "activate",
 510                                        G_CALLBACK (smiley_menu_activate_cb),
 511                                        data,
 512                                        smiley_menu_data_free,
 513                                        0);
 514
 515                 if (x > 3) {
 516                         y++;
 517                         x = 0;
 518                 } else {
 519                         x++;
 520                 }
 521         }
 522
 523         gtk_widget_show_all (menu);
 524
 525         return menu;
 526 }
 527